Uterine position and the activation of male sexual activity in testosterone propionate-treated female guinea pigs |
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| Authors: | R Gandelman |
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| Affiliation: | 1. Department of Physics, College of Science and Arts, Najran University, P.O. Box 1988, Najran 11001, Saudi Arabia;2. Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, P.O. Box: 1988, Najran 11001, Saudi Arabia;3. Department of Physics, Faculty of Science, King Khalid University, Abha, Saudi Arabia;4. Department of Physics, Faculty of Science, Assiut University, Assiut, Egypt;5. Physics Department, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia;1. Graduate School of Medicine, Nagoya University, 1-1-20 Daiko-Minami, Higashi-ku, Nagoya, Aichi 461-8673, Japan;2. Japan Atomic Energy Agency, Muramatsu 4-33, Tokai-mura, Ibaraki 319-1194, Japan;3. Graduate School of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan;1. Department of Physics, Faculty of Arts and Sciences, Najran University, Najran, Saudi Arabia;2. Unit of Radiation Protection, Najran University, Najran, 1101, Saudi Arabia;3. Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, P.O. Box: 1988, Najran, 11001, Saudi Arabia;4. Division of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama, Ikoma, Nara, 630-0192, Japan;5. Department of Surgery, College of Medicine, Najran University, Najran, Saudi Arabia;6. Department of Chemistry, College of Science and Arts, Najran University, Najran, 11001, Saudi Arabia |
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| Abstract: | Fetal female guinea pigs were delivered surgically and their position within a uterine horn relative to male fetuses was noted. When adult they were ovariectomized, injected daily with testosterone propionate, and examined for male copulatory behaviors in response to the presence of a receptive female. Females that developed contiguous to a caudal male were functionally similar to those that had been situated between two males; both exhibited enhanced levels of mounting relative to females that were located contiguous to no males (with and without the presence of a caudal male) and to females contiguous to a cephalic male. Therefore, both contiguity and positioning of the male fetus are necessary conditions for prenatal masculinization of the female guinea pig. Lastly, four animals that had resided singly in the uterus displayed the lowest levels of copulatory behaviors. |
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